add a warning:

Author: mumian

articles/azure-resource-manager/bicep/installation-troubleshoot.md

@@ -3,7 +3,7 @@ title: Troubleshoot problems with Bicep installation
 description: How to resolve errors and problems with your Bicep installation.
 ms.topic: conceptual
 ms.custom: devx-track-bicep
-ms.date: 12/15/2021
+ms.date: 04/18/2023
 ---
 
 # Troubleshoot Bicep installation
@@ -12,6 +12,10 @@ This article describes how to resolve potential errors in your Bicep installatio
 
 ## .NET runtime error
 
+> [!WARNING]
+> This is a last resort solution that may cause problems when updating versions.
+
+
 When installing the Bicep extension for Visual Studio Code, you may run into the following error messages:
 
 ```error